1. Species Parallelodon achiardii (De Stefani, 1917) †
2. Species Parallelodon aequalis Chapman, 1908 †
3. Species Parallelodon amoenus de Koninck, 1885 †
4. Species Parallelodon anaklastum Winters, 1963 †
5. Species Parallelodon angustus Hind, 1904 †
6. Species Parallelodon antiquior de Koninck, 1885 †
7. Species Parallelodon argutus (J. Phillips, 1836) †
8. Species Parallelodon atavus Whidborne, 1892 †
9. Species Parallelodon aviculoides (de Koninck, 1842) †
10. Species Parallelodon beneckei (Tornquist, 1896) †
11. Species Parallelodon bimodoliratus Dickins, 1963 †
12. Species Parallelodon blairi (S. A. Miller & Gurley, 1896) †
13. Species Parallelodon brenensis Reed, 1932 †
14. Species Parallelodon brewerii (Gabb, 1864) †
15. Species Parallelodon bynei L. R. Cox & Arkell, 1948 †
16. Species Parallelodon cancellatus (J. De C. Sowerby, 1824) †
17. Species Parallelodon cancellosus Mather, 1915 †
18. Species Parallelodon capillatus Waterhouse, 1987 †
19. Species Parallelodon carbonarius (E. T. Cox, 1857) †
20. Species Parallelodon carnei Dun & W. N. Benson, 1920 †
21. Species Parallelodon changhsingensis T.-L. Yang, W.-H. He, K.-X. Zhang, S.-B. Wu, Y. Zhang, M.-L. Yue, H.-T. Wu & Y.-F. Xiao, 2016 †
22. Species Parallelodon chemungensis (J. Hall & Whitfield, 1869) †
23. Species Parallelodon chihliensis Chao, 1927 †
24. Species Parallelodon clathratus (F. McCoy, 1844) †
25. Species Parallelodon comoides de Koninck, 1885 †
26. Species Parallelodon comptus (Gemmellaro, 1892) †
27. Species Parallelodon concinnus (F. McCoy, 1844) †
28. Species Parallelodon cooperi L. R. Cox, 1946 †
29. Species Parallelodon corrugatus de Koninck, 1885 †
30. Species Parallelodon datianensis J.-H. Li & B.-L. Ding, 1982 †
31. Species Parallelodon dawsoni Beede, 1911 †
32. Species Parallelodon decheni (von Koenen, 1879) †
33. Species Parallelodon decussatus (F. McCoy, 1844) †
34. Species Parallelodon delicatus (F. B. Meek & Worthen, 1870) †
35. Species Parallelodon delitescens (Beushausen, 1895) †
36. Species Parallelodon depressus Hyde, 1953 †
37. Species Parallelodon desioi Fantini Sestini, 1965 †
38. Species Parallelodon dickinsi Waterhouse, 1980 †
39. Species Parallelodon dilatatus de Koninck, 1885 †
40. Species Parallelodon dokutschajewi (Amalitsky, 1886) †
41. Species Parallelodon elongatus Yanishevsky, 1900 †
42. Species Parallelodon elongatus Hind, 1904 † (accepted > unreplaced junior homonym)
43. Species Parallelodon eximius de Koninck, 1885 †
44. Species Parallelodon expansus de Koninck, 1885 †
45. Species Parallelodon faba (de Koninck, 1842) †
46. Species Parallelodon facetus (S. A. Miller & Gurley, 1896) †
47. Species Parallelodon fallax (de Koninck, 1851) †
48. Species Parallelodon faxensis (Ravn, 1933) †
49. Species Parallelodon fimbriatus (de Koninck, 1844) † (accepted > unreplaced junior homonym, junior homonym of Arca fimbriata McCoy, 1844)
50. Species Parallelodon fossa (K. S. W. Campbell & B. A. Engel, 1963) †
51. Species Parallelodon fraiponti de Koninck, 1885 †
52. Species Parallelodon geinitzi de Koninck, 1885 †
53. Species Parallelodon geinitzianus (Krotov, 1885) †
54. Species Parallelodon geminus (W. Waagen, 1881) †
55. Species Parallelodon gibbosus Yanishevsky, 1900 †
56. Species Parallelodon glaber Yanishevsky, 1900 †
57. Species Parallelodon grandis Yanishevsky, 1900 †
58. Species Parallelodon guangxiensis Pojeta, R.-J. Zhang & Z.-Y. Yang, 1986 †
59. Species Parallelodon gushiensis D.-Y. Wang, 1982 †
60. Species Parallelodon haimeanus (de Koninck, 1851) †
61. Species Parallelodon hamiltoniae (J. Hall & Whitfield, 1869) †
62. Species Parallelodon hardingi (J. W. Dawson, 1868) †
63. Species Parallelodon harrisi (Caster, 1930) †
64. Species Parallelodon hirsonensis (d'Archiac, 1843) †
65. Species Parallelodon hubeiensis R.-J. Zhang, 1977 †
66. Species Parallelodon illinoiensis Weller, 1916 †
67. Species Parallelodon intermedius de Koninck, 1885 †
68. Species Parallelodon interruptus (de Koninck, 1876) †
69. Species Parallelodon interruptus de Koninck, 1885 † (accepted > unreplaced junior homonym)
70. Species Parallelodon irvinensis (Foerste, 1909) †
71. Species Parallelodon javornikensis Astafieva-Urbajtis, 1978 †
72. Species Parallelodon junggarensis Z.-R. Yang, 1983 †
73. Species Parallelodon kilmoriensis Chapman, 1908 †
74. Species Parallelodon kingianus (Verneuil, 1845) †
75. Species Parallelodon kiptschakensis Aleksandri-Sadova, 1959 †
76. Species Parallelodon koeneni (Tornquist, 1896) †
77. Species Parallelodon koninckianus Yanishevsky, 1900 †
78. Species Parallelodon kungurensis (Stuckenberg, 1898) †
79. Species Parallelodon lacordairianus (de Koninck, 1842) †
80. Species Parallelodon lamellifer de Koninck, 1885 †
81. Species Parallelodon laminatus de Koninck, 1885 †
82. Species Parallelodon laochangensis Feng, Cui & Lui, 1992 †
83. Species Parallelodon latisinuatus (Gemmellaro, 1892) †
84. Species Parallelodon latus de Koninck, 1885 †
85. Species Parallelodon lianyuanensis R.-J. Zhang, 1977 †
86. Species Parallelodon licharewi Maslennikov, 1935 †
87. Species Parallelodon longum Maslennikov, 1935 †
88. Species Parallelodon louisianensis J. S. Williams, 1931 †
89. Species Parallelodon macrodon (Lundgren, 1867) †
90. Species Parallelodon mandelensis (Dahmer, 1915) †
91. Species Parallelodon marinum Lobanova, 1961 †
92. Species Parallelodon martellii (De Stefani, 1917) †
93. Species Parallelodon maslennikovi Kanev, 2006 †
94. Species Parallelodon meridionalis de Koninck, 1885 †
95. Species Parallelodon michelini (d'Archiac & Verneuil, 1842) †
96. Species Parallelodon micronema (F. B. Meek & Worthen, 1866) †
97. Species Parallelodon minimus (Worthen, 1884) †
98. Species Parallelodon minimus de Koninck, 1885 † (accepted > unreplaced junior homonym, secondary junior homonym of Parallelodon minimus (Worthen, 1884))
99. Species Parallelodon minor de Koninck, 1885 †
100. Species Parallelodon modestus de Koninck, 1885 †
101. Species Parallelodon modioliformis Hyde, 1953 †
102. Species Parallelodon monreali (Barrois, 1891) †
103. Species Parallelodon multilamellatus (Gemmellaro, 1892) †
104. Species Parallelodon multiliratus Girty, 1909 †
105. Species Parallelodon multistriatus Girty, 1909 †
106. Species Parallelodon mytiloides de Koninck, 1885 †
107. Species Parallelodon naliwkini (Yakovlev, 1903) †
108. Species Parallelodon newarkensis (Herrick, 1888) †
109. Species Parallelodon noinskii (Stuckenberg, 1905) †
110. Species Parallelodon normalis de Koninck, 1885 †
111. Species Parallelodon obscurus (de Koninck, 1842) †
112. Species Parallelodon obsoletus (F. B. Meek, 1871) †
113. Species Parallelodon obtusus (J. Phillips, 1836) †
114. Species Parallelodon olseni (Grabau, 1931) †
115. Species Parallelodon ornatissimus de Koninck, 1885 †
116. Species Parallelodon ovatus de Koninck, 1885 † (accepted > unreplaced junior homonym, junior secondary homonym of Parallelodon ovatus (Hall & Whitfield, 1869))
117. Species Parallelodon paeneplanus (Caster, 1930) †
118. Species Parallelodon parkinsoni Amler, 1987 †
119. Species Parallelodon parvus (C. A. White & Whitfield, 1862) †
120. Species Parallelodon pauli Friedel & Amler, 2024 †
121. Species Parallelodon pergibbosus Mather, 1915 †
122. Species Parallelodon perplexus de Koninck, 1885 †
123. Species Parallelodon pictum (Milaschewitsch, 1881) †
124. Species Parallelodon pinguis (de Koninck, 1842) †
125. Species Parallelodon planus Lyutkevich & Lobanova, 1960 †
126. Species Parallelodon politus Girty, 1909 †
127. Species Parallelodon praecursor (Spriestersbach, 1942) †
128. Species Parallelodon priscus (G. A. Goldfuss, 1841) †
129. Species Parallelodon pygmaeus (Whiteaves, 1892) †
130. Species Parallelodon qinghaiensis L. Liu, 1976 †
131. Species Parallelodon quichaurensis Gonzales, 2006 †
132. Species Parallelodon raimondii (Gabb, 1877) †
133. Species Parallelodon rectangulus (Mansuy, 1914) †
134. Species Parallelodon respectus Reed, 1944 †
135. Species Parallelodon reticulatus (F. McCoy, 1844) †
136. Species Parallelodon rouillieri (Lahusen, 1883) †
137. Species Parallelodon rudis (J. de C. Sowerby, 1824) †
138. Species Parallelodon rugosus (Buckman, 1845) †
139. Species Parallelodon sangamonensis (Worthen, 1890) †
140. Species Parallelodon semicostatus (McCoy, 1844) †
141. Species Parallelodon semiellipticus Yanishevsky, 1900 †
142. Species Parallelodon shachtauensis Nelzina, 1961 †
143. Species Parallelodon sibiricus Yanishevsky, 1915 †
144. Species Parallelodon simplex (Tornquist, 1896) †
145. Species Parallelodon spryi Chapman, 1908 †
146. Species Parallelodon squamifer (J. Phillips, 1836) †
147. Species Parallelodon striatus (Schlotheim, 1820) †
148. Species Parallelodon subargutus (de Koninck, 1877) †
149. Species Parallelodon subperlongi X.-M. Gan, 1978 †
150. Species Parallelodon substriatus (Krotov, 1885) †
151. Species Parallelodon subtilistriatus Wanner, 1922 †
152. Species Parallelodon sulcatus (Weller, 1906) †
153. Species Parallelodon sundaicus Hamlet, 1928 †
154. Species Parallelodon suzukii (Nakazawa, 1999) †
155. Species Parallelodon tamuganeensis Z.-R. Yang, 1983 †
156. Species Parallelodon tenuicostatus Yanishevsky, 1900 †
157. Species Parallelodon tenuis de Koninck, 1885 †
158. Species Parallelodon tenuistria (McCoy, 1844) †
159. Species Parallelodon tenuistriatus (F. B. Meek & Worthen, 1866) †
160. Species Parallelodon theciformis de Koninck, 1885 †
161. Species Parallelodon theodorensis Waterhouse, 1987 †
162. Species Parallelodon tieni Chao, 1927 †
163. Species Parallelodon trimuensis Reed, 1944 †
164. Species Parallelodon undatus de Koninck, 1885 †
165. Species Parallelodon uralicus Muromtseva, 1984 †
166. Species Parallelodon vadaszi Rakusz, 1932 †
167. Species Parallelodon venustus (J. Steininger, 1853) †
168. Species Parallelodon verneuillianus (de Koninck, 1842) †
169. Species Parallelodon villmarensis (Beushausen, 1895) †
170. Species Parallelodon vokesi Elias, 1957 †
171. Species Parallelodon walciodorensis de Koninck, 1885 †
172. Species Parallelodon whitei (Gemmellaro, 1892) †
173. Species Parallelodon xijinwulanensis J.-G. Sha, 1995 †
174. Species Parallelodon yamansuensis Z.-R. Yang, 1983 †
175. Species Parallelodon yangshanensis D.-Y. Wang, 1982 †
176. Species Parallelodon zerrenneri (Schauroth, 1853) †
177. Species Parallelodon angulatus (J. Hall, 1885) † (uncertain > taxon inquirendum)
178. Species Parallelodon azzouzi Freneix, 1965 † (uncertain > unassessed)
179. Species Parallelodon cavallieri Cossmann, 1914 † (uncertain > unassessed)
180. Species Parallelodon guibali Cossmann, 1914 † (uncertain > unassessed)
181. Species Parallelodon insignis Korejwo & Teller, 1964 † (uncertain > taxon inquirendum)
182. Species Parallelodon konincki Etheridge, 1898 † (uncertain > taxon inquirendum)
183. Species Parallelodon quadratus (J. Hall, 1883) † (uncertain > taxon inquirendum)
184. Species Parallelodon radiatus Rotkytė, 1966 † (uncertain > unassessed)
185. Species Parallelodon saranaensis Fredericks, 1915 † (uncertain > unassessed)
186. Species Parallelodon simensis (F. N. Chernyshev, 1902) † (uncertain > unassessed)
187. Subgenus Parallelodon (Cosmetodon) C. C. Branson, 1942 † accepted as Grammatodon (Cosmetodon) C. C. Branson, 1942 † represented as Grammatodon F. B. Meek & Hayden, 1860 †
     1. Species Parallelodon (Cosmetodon) marshallensis (Winchell, 1862) † accepted as Grammatodon (Cosmetodon) marshallensis (Winchell, 1862) † represented as Grammatodon marshallensis (Winchell, 1862) † (unaccepted > superseded combination)
     2. Species Parallelodon (Cosmetodon) ovatus (J. Hall & Whitfield, 1869) † accepted as Grammatodon (Cosmetodon) ovatus (J. Hall & Whitfield, 1869) † represented as Grammatodon ovatus (J. Hall & Whitfield, 1869) † (unaccepted > superseded combination)
188. Subgenus Parallelodon (Nanonavis) R. B. Stewart, 1930 † accepted as Nanonavis R. B. Stewart, 1930 † (unaccepted > superseded rank)
189. Subgenus Parallelodon (Nemodon) Conrad, 1869 † accepted as Nemodon Conrad, 1869 †
     1. Species Parallelodon (Nemodon) nuarsense Cossmann, 1913 † (uncertain > unassessed)
190. Subgenus Parallelodon (Porterius) B. L. Clark, 1925 accepted as Porterius B. L. Clark, 1925 (unaccepted > superseded rank)
191. Species Parallelodon amaenus de Koninck, 1885 † accepted as Parallelodon amoenus de Koninck, 1885 † (unaccepted > misspelling - incorrect original spelling)
192. Species Parallelodon antiquus Barrois, 1891 † accepted as Pseudarca antiqua (Barrois, 1891) † (unaccepted > superseded combination)
193. Species Parallelodon balakhonskiensis Ragozin, 1931 † accepted as Kinerkaella balakhonskiensis (Ragozin, 1931) † (unaccepted > superseded combination)
194. Species Parallelodon bistriatus (Portlock, 1843) † accepted as Cypricardinia bistriata (Portlock, 1843) † (unaccepted > superseded combination)
195. Species Parallelodon breweriana [sic] † accepted as Parallelodon brewerii (Gabb, 1864) † (unaccepted > misspelling - incorrect subsequent spelling)
196. Species Parallelodon cardioceratanum Crickmay, 1930 † accepted as Grammatodon cardioceratanum (Crickmay, 1930) † (unaccepted > superseded combination)
197. Species Parallelodon carinatus (J. Sowerby, 1813) † accepted as Nanonavis carinata (J. Sowerby, 1813) † (unaccepted > superseded combination)
198. Species Parallelodon cochlearis (Winchell, 1863) † accepted as Grammatodon cochlearis (Winchell, 1863) † (unaccepted > superseded combination)
199. Species Parallelodon crebristriatus de Koninck, 1885 † accepted as Parallelodon haimeanus (de Koninck, 1851) † (unaccepted > junior subjective synonym, questionable synonym)
200. Species Parallelodon elegantulus (de Koninck, 1844) † accepted as Cypricardinia elegantula (de Koninck, 1844) † (unaccepted > superseded combination)
201. Species Parallelodon guizhouensis Lan & Xu, 1980 † (unaccepted > nomen nudum)
202. Species Parallelodon jiaozishanensis Lan & Xu, 1980 † (unaccepted > nomen nudum)
203. Species Parallelodon kamaiensis Nelzina, 1960 † (unaccepted > nomen nudum)
204. Species Parallelodon kansasensis Sayre, 1930 † accepted as Grammatodon kansasensis (Sayre, 1930) † (unaccepted > superseded combination)
205. Species Parallelodon lacordaireanus [sic] † accepted as Parallelodon lacordairianus (de Koninck, 1842) † (unaccepted > misspelling - incorrect subsequent spelling)
206. Species Parallelodon latesinuatus [sic] † accepted as Parallelodon latisinuatus (Gemmellaro, 1892) † (unaccepted > misspelling - incorrect subsequent spelling)
207. Species Parallelodon longjiuensis F.-X. Guo, 1985 † accepted as Parallelodon qinghaiensis L. Liu, 1976 † (unaccepted > junior subjective synonym)
208. Species Parallelodon minima (Worthen, 1884) † accepted as Parallelodon minimus (Worthen, 1884) † (unaccepted > incorrect grammatical agreement of specific epithet)
209. Species Parallelodon modestus (Winchell, 1863) † accepted as Grammatodon modestus (Winchell, 1863) † (unaccepted > superseded combination)
210. Species Parallelodon mrassiensis Ragozin, 1931 † accepted as Kinerkaella mrassiensis (Ragozin, 1931) † (unaccepted > superseded combination)
211. Species Parallelodon multilineatus de Koninck, 1885 † accepted as Parallelodon haimeanus (de Koninck, 1851) † (unaccepted > junior subjective synonym)
212. Species Parallelodon obliquatus Yokoyama, 1920 accepted as Porterius dalli (E. A. Smith, 1885)
213. Species Parallelodon obsoletiformes Hayasaka, 1925 † accepted as Grammatodon (Cosmetodon) obsoletiformes (Hayasaka, 1925) † represented as Grammatodon obsoletiformes (Hayasaka, 1925) † (unaccepted > superseded combination)
214. Species Parallelodon reticulatus Shih, 1962 † accepted as Parallelodon qinghaiensis L. Liu, 1976 † (unaccepted > junior homonym, junior secondary homonym of Parallelodon reticulata (McCoy, 1844); P. qinghaiensis is as a replacement name)
215. Species Parallelodon striatus minimus Lan & Xu, 1980 † (unaccepted > nomen nudum)
216. Species Parallelodon subliratus [sic] † accepted as Parallelodon subtilistriatus Wanner, 1922 † (unaccepted > misspelling - incorrect subsequent spelling)
217. Species Parallelodon sundaicum Hamlet, 1928 † accepted as Parallelodon sundaicus Hamlet, 1928 † (unaccepted > incorrect grammatical agreement of specific epithet)
218. Species Parallelodon thecidiformis de Koninck, 1885 † accepted as Parallelodon theciformis de Koninck, 1885 † (unaccepted > misspelling - incorrect original spelling)

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